Audio adapter plate for mounting a radio into the dashboard of an automotive vehicle



FIG. 1 is a front elevation view of the ornamental design;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a side elevation view of FIG. 1; and

FIG. 4 is a back elevation view of FIG. 1. 

The ornamental design for an audio adapter plate for mounting a radio into the dashboard of an automotive vehicle, as shown and described. 